959899 has 6 divisors (see below), whose sum is σ = 1013460. Its totient is φ = 909036.

The previous prime is 959887. The next prime is 959911. The reversal of 959899 is 998959.

It is an interprime number because it is at equal distance from previous prime (959887) and next prime (959911).

It is not a de Polignac number, because 959899 - 2⁵ = 959867 is a prime.

959899 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (959809) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 969 + ... + 1690.

It is an arithmetic number, because the mean of its divisors is an integer number (168910).

2⁹⁵⁹⁸⁹⁹ is an apocalyptic number.

959899 is a deficient number, since it is larger than the sum of its proper divisors (53561).

959899 is a wasteful number, since it uses less digits than its factorization.

959899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2697 (or 2678 counting only the distinct ones).

The product of its digits is 262440, while the sum is 49.

The square root of 959899 is about 979.7443544109. The cubic root of 959899 is about 98.6450233044.

Subtracting 959899 from its reverse (998959), we obtain a triangular number (39060 = T₂₇₉).

The spelling of 959899 in words is "nine hundred fifty-nine thousand, eight hundred ninety-nine".